Chelsea will be without midfielder Danny Drinkwater as he's been ruled out for at least another three weeks with a calf injury that's hampered him so far this season.
Extra police were sent to the Emirates Stadium in north London to deal with disorder which broke out at the Europa League tie.
Alexis Sanchez will feature after playing the whole game on Thursday night, where Theo Walcott (calf) hobbled off. Francis Coquelin (hamstring) and Santi Cazorla (ankle) are definitely out.
"Arsenal are a big rival for the title, If you see their squad you can understand that - they have a lot of top players".
"Chelsea have hit their stride after the shock defeat to Burnley and look to be London's most likely title challengers".
The defeat prompted stern criticism from pundits and former Gunners.
But rather than dwell on recent history, the Frenchman preferred to focus on Arsenal's recent FA Cup and Community Shield triumphs over Antonio Conte's men.
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The ambitions here are realistic and there is an enormous potential for growth and I hope we can achieve our goals'. They are performing poorly in this season. "I thought in the second-half we got up to the ball better".
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"We have great respect for officials, but it is unusual to finish a third game in a row against Arsenal with 10 men", Conte said. They have lost only one player, [Alex] Oxlade-Chamberlain, and they have kept all of their players.
Arsenal have not won any of the last 13 Premier League away games against last season's top-six teams and have suffered defeats on seven of their last eight visits to Stamford Bridge.
"I remember that game very well because it was a really bad game for us", Conte told a news conference.
"It is just a question of how much you want it, no matter where you play".
But a sublime strike from Wayne Bridge in the UEFA Champions League second leg at Stamford Bridge sealed Chelsea's first win in 17 games.
But Wenger, speaking ahead of the trip to Chelsea on Sunday, says his team have offered the kind of response, which suggests that they have lost none of their "characters".